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Q. |
Tear gas used by the police to disperse the mob contains – |
A. | carbon dioxide |
B. | chlorine |
C. | ammonia |
D. | hydrogen sulphide |
Answer» B. chlorine | |
Explanation: Tear gas is a compound. Each molecule of tear gas contains one atom of chlorine. The compound 2- chlorobenzalmalononitrile, a cyanocarbon, is the defining component of a "tear gas" commonly referred to as CS gas, which is used as a riot control agent. |
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